More interestingly, and big clues towards likely reasons why, are the numbers behind the story:
The analysis also showed that the type of hits outlawed by the NHL rule weren't actually the major cause of concussions.
About 28 per cent of interactions produced a concussion also generated a penalty call, said Cusimano. In that 28 per cent, the bulk of the penalties were for fighting. "And blindsiding, which was what the rule was initially was written about, was only 4.1 per cent of all those.... But four per cent of 28 per cent is a very small number."
"I wasn't totally surprised, but I was disappointed that we weren't able to show a difference," Cusimano said.
"Part of it's the way the rule's written. Part of it's the way the rule is enforced. Part of it's the penalties associated with the rule. And part of it is that concussions are also coming from other causes like fighting, that is still allowed."
NBC re-reported the article: http://prohockeytalk...ncussion-rates/
As for solutions, Cusimano came up with four suggestions: banning fighting, stiffer penalties for teams/players that cause concussions, changing equipment regulations and looking at different ice sizes and dimensions.